Flavius Josephus, The Wars of the Jews
William Whiston, A.M., Ed.

[48] Now as to the country of Samaria, it lies between Judea and Galilee; it begins at a village that is in the great plain called Ginea, and ends at the Acrabbene toparchy, and is entirely of the same nature with Judea; for both countries are made up of hills and valleys, and are moist enough for agriculture, and are very fruitful. They have abundance of trees, and are full of autumnal fruit, both that which grows wild, and that which is the effect of cultivation. They are not naturally watered by many rivers, but derive their chief moisture from rain-water, of which they have no want; and for those rivers which they have, all their waters are exceeding sweet: by reason also of the excellent grass they have, their cattle yield more milk than do those in other places; and, what is the greatest sign of excellency and of abundance, they each of them are very full of people.